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Bleach that you buy from the store has a shelf life. Some say 2 years some say 12 months. If you want to make your own bleach either to disinfect stuff if SHTF or to be more frugal, stockpiling pool shock may be the way forward. Also you can purify water so its drinkable with this also.
This is a great barter item, IMHO. Bleach will be hard to come by if SHTF for more than a few months, so again with this stockpiled, you are set. This is a great read and a cheap to purchase from Walmart or amazon
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